Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin, CVE-2026-59523

CVE, Research URL: CVE-2026-59523
Home page URL: Security reports for Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin
Application: Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin
Published on: Jul 13, 2026
Research Description: Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through <= 1.6.11.11.
Affected versions: max 1.6.12.0.
Status: vulnerable